Home / 12,005.36-18,017.28-8,333.36

Finding the Fourth Proportional to 12,005.36, 18,017.28 and 8,333.36

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Solution

The fourth proportional to 12,005.36, 18,017.28 and 8,333.36 is: 12,506.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.36 : 18,017.28 = 8,333.36 : x
  2. Step 2: Convert to fraction form
    12,005.36/18,017.28 = 8,333.36/x
  3. Step 3: Cross multiply
    12,005.36x = 18,017.28 × 8,333.36
  4. Step 4: Simplify right side
    12,005.36x = 150,144,480.46
  5. Step 5: Solve for x
    x = 150,144,480.46/12,005.36
  6. Step 6: Final answer
    x = 12,506.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.